package com.hfjc.service;

import java.util.List;

import com.hfjc.entity.Product;


public interface IProductService {
	public List<Product> findAll();
	public Product productAdd(Product products);
	public Product findProductsById(Integer id);
	public Product updateProductsById(Integer id,String productName,Float price);
	public String delProductsById(Integer id);
	public List<Product> findProductsByPrice(Float price);
	public void findPriceById(Integer id) throws Exception;
}
